Friday, April 10, 2009

Laser printers (non-impact printer)



  • How the laser printer produces an image
    • A laser or LEDs make dots on a light sensitive drum
    • Toner (very tiny particles of plastic) stick to the drum where the dots where made
    • Paper is pressed against the drum and the toner is placed on the paper
    • The paper is heated and the toner melts into the paper
  • Produces the highest quality printout
  • For black and white printouts, very low cost per page
  • Printout is permanent
  • Color laser printers are still fairly expensive ($3,000 to $10,000)

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